Use Third-Party JavaScript Libraries - Swapy

I am trying to use Third-Party JavaScript Library Swapy in a LWC.

but I get error on the load script

<template>
<div class="list-container">
    <ul id="swapy-list">
        <li>Item 1</li>
        <li>Item 2</li>
        <li>Item 3</li>
        <li>Item 4</li>
    </ul>
</div>

import { LightningElement } from 'lwc';
import { loadScript } from 'lightning/platformResourceLoader';
import SWAPY from '@salesforce/resourceUrl/SwapyJS';

export default class TestDrag extends LightningElement {
    swapyInitialized = false;

    renderedCallback() {
         if (this.swapyInitialized) return;
        this.swapyInitialized = true;

        loadScript(this, SWAPY)
            .then(() => {
                // Init Swapy on the list element
                const swapy = new window.Swapy('#swapy-list');
                swapy.init();
            })
            .catch(error => {
                console.error('Failed to load Swapy:', error);
            });
    }

}

I use this script https://unpkg.com/swapy/dist/swapy.min.js that I get from this page https://swapy.tahazsh.com/docs/installation/

the error that I get: window.Swapy is not a constructor